<template>
  <div id="app">
    <h1>根组件</h1>
    <span>库存总数:</span>
    <input type="text" :value="num" @input="inputFn" />
    <div style="border: 1px solid black; width: 300px">
      <AddItem></AddItem>
    </div>
    <hr />
    <div style="border: 1px solid black; width: 300px">
      <SubItem></SubItem>
    </div>
  </div>
</template>

<script>
import AddItem from "@/components/AddItem";
import SubItem from "@/components/SubItem";
import { mapState } from "vuex";
export default {
  components: {
    AddItem,
    SubItem,
  },
  methods: {},
  computed: {},
};
</script>

<style>
#app {
  width: 300px;
  margin: 20px auto;
  border: 1px solid #ccc;
  padding: 4px;
}
</style>
